Leven: Fix branding and menu alignment in header

leven/sass/_extra-child-theme.scss

@@ -87,7 +87,7 @@ a {
 		}
 
 		.site-branding {
-			align-self: stretch;
+			align-self: auto;
 			max-width: inherit;
 			grid-area: site-branding;
 		}

leven/style-rtl.css

@@ -4,7 +4,7 @@ Theme Name: Leven
 Theme URI: https://github.com/Automattic/themes/varia
 Author: the WordPress team
 Author URI: https://wordpress.org/
-Description: A design system for WordPress sites built with Gutenberg.
+Description: A colorful, typography driven, Gutenberg-ready theme meant to grab the attention of potential customers and market or sell products to them.
 Requires at least: WordPress 4.9.6
 Version: 1.0
 License: GNU General Public License v2 or later
@@ -3254,7 +3254,7 @@ p:not(.site-title) a:hover {
 		display: block;
 	}
 	.site-header .site-branding {
-		align-self: stretch;
+		align-self: auto;
 		max-width: inherit;
 		grid-area: site-branding;
 	}

leven/style.css

@@ -3259,7 +3259,7 @@ p:not(.site-title) a:hover {
 		display: block;
 	}
 	.site-header .site-branding {
-		align-self: stretch;
+		align-self: auto;
 		max-width: inherit;
 		grid-area: site-branding;
 	}